UMDGen 4

OVERVIEW

UMDGen is a disk image utility that is made available by the UMDGen Team for Windows. It is a free ISO image manipulation app. It can be used to create and edit UMD compliant ISO image files, useful for interaction with consoles like the PlayStation Portable. You can add, replace, delete and extract files inside an image and apply PPF patches to it. It's a backup tool only; you should only use UMDGen to back up legally owned PlayStation Portable games.

SAFETY AND REQUIREMENTS

UMDGen is an old 32-bit Windows program that runs on Windows XP and later, and it still works on current systems such as Windows 10, including 64-bit editions. Version 4.00, released in December 2006, is the last version; the program is no longer developed and its official website is offline.

Besides plain ISO files, UMDGen reads and writes compressed CSO and DAX images, and its batch converter can convert several images between uncompressed ISO, DAX and CSO formats in one go.

UMDGen lets you edit the files inside PSP UMD images and save them as ISO, CSO or DAX files.

Features:

• It has the option to create a 'Dummy File'
• The 'Drop Open' feature for opening images was re-introduced
• It can generate UMD_DATA.BIN files
• It can change "PSP_SYSTEM_VER" in PARAM.SFO to a different firmware version
• Its Optimize function automatically detects and resizes dummy data. This removes unneeded padding and dummies the contents of the UPDATE folder
• Complete CSO and DAX support, so compressed images can be edited like uncompressed ones
• Images that are not PSP standard can still be read by the user using UMDGen

CONCLUSION:

What makes UMDGen useful is its ability to generate UMD_DATA.BIN files, edit the contents of images from legally owned PSP games, and its complete CSO and DAX support. It remains a well-known tool in the PSP community, although it has not been updated since version 4.00.